Fix symlink-directory conflict on upgrade

Due to a years-old stupid limitation of rpm [1], it is not possible to
upgrade between directory and symlink without ugly hacks, so instead of
symlinking the include directory, only symlink the individual include
files inside it.

Without this fix, upgrading quazip-devel or quazip-qt5-devel will fail.

[1] https://bugzilla.redhat.com/show_bug.cgi?id=447156

Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>

quazip.spec

@@ -2,7 +2,7 @@
 
 Name:		quazip
 Version:	1.1
-Release:	2%{?dist}
+Release:	3%{?dist}
 Summary:	Qt/C++ wrapper for the minizip library
 License:	GPLv2+ or LGPLv2+
 URL:		https://github.com/stachenov/quazip
@@ -126,8 +126,19 @@ done
 ln -s libquazip1-qt4.so %{buildroot}%{_libdir}/libquazip.so
 ln -s libquazip1-qt5.so %{buildroot}%{_libdir}/libquazip5.so
 
-ln -s QuaZip-Qt4-1.1/quazip %{buildroot}%{_includedir}/quazip
+install -d %{buildroot}%{_includedir}/quazip
-ln -s QuaZip-Qt5-1.1/quazip %{buildroot}%{_includedir}/quazip5
+pushd %{buildroot}%{_includedir}/QuaZip-Qt4-1.1/quazip
+for f in *; do
+	ln -s ../QuaZip-Qt4-1.1/quazip/$f %{buildroot}%{_includedir}/quazip/$f
+done
+popd
+
+install -d %{buildroot}%{_includedir}/quazip5
+pushd %{buildroot}%{_includedir}/QuaZip-Qt5-1.1/quazip
+for f in *; do
+	ln -s ../QuaZip-Qt5-1.1/quazip/$f %{buildroot}%{_includedir}/quazip5/$f
+done
+popd
 
 install -d %{buildroot}%{_datadir}/cmake/Modules
 install -pm 0644 %{SOURCE1} %{buildroot}%{_datadir}/cmake/Modules/FindQuaZip.cmake
@@ -147,7 +158,7 @@ install -pm 0644 %{SOURCE1} %{buildroot}%{_datadir}/cmake/Modules/FindQuaZip5.cm
 %{_libdir}/cmake/QuaZip-Qt4-1.1/
 %{_libdir}/pkgconfig/quazip1-qt4.pc
 # pre-1.0 compat files
-%{_includedir}/quazip
+%{_includedir}/quazip/
 %{_libdir}/libquazip.so
 %{_datadir}/cmake/Modules/FindQuaZip.cmake
 
@@ -163,7 +174,7 @@ install -pm 0644 %{SOURCE1} %{buildroot}%{_datadir}/cmake/Modules/FindQuaZip5.cm
 %{_libdir}/cmake/QuaZip-Qt5-1.1/
 %{_libdir}/pkgconfig/quazip1-qt5.pc
 # pre-1.0 compat files
-%{_includedir}/quazip5
+%{_includedir}/quazip5/
 %{_libdir}/libquazip5.so
 %{_datadir}/cmake/Modules/FindQuaZip5.cmake
 
@@ -183,6 +194,9 @@ install -pm 0644 %{SOURCE1} %{buildroot}%{_datadir}/cmake/Modules/FindQuaZip5.cm
 
 
 %changelog
+* Tue Sep 14 2021 Ondrej Mosnacek <omosnace@redhat.com> - 1.1-3
+- Fix symlink-directory conflict on upgrade
+
 * Thu Aug 19 2021 Ondrej Mosnacek <omosnace@redhat.com> - 1.1-2
 - Add Qt6 subpackages